iOS/Android: Circle of 6 is a free app for iOS and Android devices that lets you build a circle of six friends or trusted people to quickly call on when you're in danger and need help, in a bad situation with someone else, or need to reach the authorities. With one touch, the app pings your trusted friends or emergency services with your request for help, along with your current location so they can find you.

Circle of 6 is primarily designed to prevent domestic and sexual violence, and help people who may find themselves in a dangerous or uncomfortable situation get out of it quickly—either thanks to their best friends or thanks to police or other authorities. Still, the idea is sound for anyone who may need help that doesn't necessarily involve calling 911: if your car's broken down and you need a lift, one tap sends your friends a message saying you're in trouble along with the address where you are so they can pick you up. If you're in the middle of a horrible date and need a distraction, the app can help with that too.